Hi Jose, Pierre,
Yes, I am not using ParMetis or Metis. This is how I am configuring PETSc:
$ ./configure --with-debugging=no --with-mpi-dir=
--with-scalar-type=complex --download-mumps --download-scalapack
--with-blaslapack-dir=
Would you happen to know if there is any option available to force
Default renumbering is sequential. Since --download-parmetis requires
--download-metis, I doubt Varun is using ParMETIS since the appropriate ICNTL
flag is not explicitly set.
If we go back to the original “issue”, I believe this is because you are doing
an LU factorization with a large number
Probably someone else can give a better answer, but if I remember correctly
ParMetis relies on certain random number generator that makes it produce
different partitions for different runs. I think this was fixed in the ParMetis
that --download-parmetis installs, but if I am not wrong you are